CVE-2018-1000028: linux linux_kernel Improper Privilege Management
Vulnerability summary
CVE-2018-1000028 is a high (CVSS 7.4) Improper Privilege Management vulnerability in linux linux_kernel. EPSS estimates a 1.38% chance of exploitation in the next 30 days, higher than 71.7% of scored vulnerabilities.
Timeline
- 09-02-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
Linux kernel version after commit bdcf0a423ea1 - 4.15-rc4+, 4.14.8+, 4.9.76+, 4.4.111+ contains a Incorrect Access Control vulnerability in NFS server (nfsd) that can result in remote users reading or writing files they should not be able to via NFS. This attack appear to be exploitable via NFS server must export a filesystem with the "rootsquash" options enabled. This vulnerability appears to have been fixed in after commit 1995266727fa.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.4HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- OSV · DebianEcosystem advisory · calculated7.4HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS trend
Probability
1.38%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
0.00 pp
From 1.38% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu9 products
- linux< 4.4.0-119.143
- linux-aws< 4.4.0-1016.16 | < 4.4.0-1054.63
- linux-azure< 4.15.0-1023.24~14.04.1 | < 4.15.0-1013.13~16.04.2
- linux-gcp< 4.15.0-1014.14~16.04.1
- linux-hwe< 4.15.0-24.26~16.04.1
Debian1 product
- linux< 4.14.17-1
Linux1 product
- linux_kernel≥ 4.4.111, ≤ 4.4.119 | ≥ 4.9.76, ≤ 4.9.85 | ≥ 4.14.8, ≤ 4.14.23 | ≥ 4.15.1, ≤ 4.15.7 | 4.15:rc4
3 vendors · 11 products
References
4 links- git.kernel.org/linus/1995266727fa8143897e89b55f5d3c79aa828420X Refsource CONFIRMPatchVendor Advisory
